Which of the following forces is responsible for keeping the planets in orbit around the Sun?

A.

magnetism

B.

gravity

C.

friction

D.

electromagnetic force

How far does light travel in 1 nano second?

a car starts from rest and travels for 8 seconds with a uniform acceleration of 2.9 m/s^2. the driver then applies the brakes causing a uniform acceleration of - 1.7m/s^2. if the brakes are applied for 2.

Which elements are not noble gases? check all that apply A.) Neon B.) Helium C.) Lithium D.) Calcium

A bullet moving at 500 m/s has a kinetic energy of 2500 J and a potential energy of 0.5 J at a certain moment. What is the bullets mass and how high above the ground is it at the moment

A 1,160 kg satellite orbits Earth with a tangential speed of 7,446 m/s. If the satellite experiences a centripetal force of 8,955 N, what is the height of the satellite above the surface of Earth? Recall that Earth's radius is 6.

Because the moon rotates once for each revolution around Earth, Choose one answer. a. you see some phases more than others. b. a different side of the moon faces Earth each day. c. you never see the far side of the moon.

Planet A takes 1 year to go around its star at an average of 1 A. U. distance. Planet B is 4 A. U. from the star. Calculate how long Planet B takes to orbit.

Average mass of a toy car (small, hot wheels) ?

A pwc capsizes. what is the best way to roll the pwc to turn it upright?

Which biome has the most extreme conditions